Abstract:During the service process of the converter, there are problems such as excessive thermal deformation of the shell and rupture of the refractory bricks, which directly affect the safe operation of the equipment. Analysis of the temperature and stress distribution of the furnace body can provide support for optimizing the furnace cooling system and avoiding stress concentration. A finite element model of the converter including non-water-cooled loop, furnace body and suspension structure was established, and the steady-state temperature field of furnace body was studied using ANSYS simulation software considering the mutual heat radiation between furnace body and the loop and suspension, and the mechanical and thermal stresses of the furnace body were analyzed. The results show that, when the hot surface temperature of working layer liner is 1 600 ℃, the temperature of upper cone section of the shell and the body part is higher, up to 435 ℃, which is close to the creep temperature of the shell, and the finite element simulation results are basically consistent with industrial data. The thermal stress on the furnace body is much greater than the mechanical stress, the equivalent stress of the hot surface on liner is more prone to cracking. The temperature and stress distribution of shell will have obvious abrupt changes at the structural transition. The results can provide theoretical basis for the cooling of the furnace body and furnace design.
高程, 尹晓春, 周广盼, 廖鹏飞, 海坤. 150 t复吹转炉炉体温度及应力场的有限元分析[J]. 中国冶金, 2023, 33(1): 41-46.
GAO Cheng, YIN Xiao-chun, ZHOU Guang-pan, LIAO Peng-fei, HAI Kun. Finite element analysis of temperature and stress fields in 150 t combined blown converter body[J]. China Metallurgy, 2023, 33(1): 41-46.